PPTX corrupted after rewrite with openxml filter

[Former user]

Original [issue 83](https://code.google.com/p/okapi/issues/detail?id=83) created by @ysavourel on 2009-07-08T00:32:02.000Z:

The attached pptx file does not open after it has been rewritten in an operation like Text Rewritting in rainbow. This may be the same issue as comment 81\. with docx.

[Former user]

Comment [1.](https://code.google.com/p/okapi/issues/detail?id=83#c1) originally posted by @ysavourel on 2009-07-31T17:27:03.000Z:

The file now opens.